Torque · Power · Speed

Rotating Equipment Relationships

Power → Torque
Torque
—
Torque → Power
Power
—
Speed from Power & Torque
Speed
—
Relationships & Unit Conversions
Mechanical Power (Rotational)
P = T × ω
P (watts) = T (N·m) × ω (rad/s)
P (kW) = T (N·m) × N (rpm) / 9549.3
P (hp) = T (ft·lbf) × N (rpm) / 5252
Speed Conversions
From To Multiply by
rpm rad/s 0.10472
rad/s rpm 9.5493
Torque Conversions
From To Multiply by
N·m ft·lbf 0.7376
ft·lbf N·m 1.3558
N·m kg·m 0.1020
kg·m N·m 9.8067
Power Conversions
From To Multiply by
kW hp 1.3410
hp kW 0.7457
kW W 1000
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